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Finding the Fourth Proportional to 493,507.20, 693,009.60 and 493,507.20

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Solution

The fourth proportional to 493,507.20, 693,009.60 and 493,507.20 is: 693,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,507.20 : 693,009.60 = 493,507.20 : x
  2. Step 2: Convert to fraction form
    493,507.20/693,009.60 = 493,507.20/x
  3. Step 3: Cross multiply
    493,507.20x = 693,009.60 × 493,507.20
  4. Step 4: Simplify right side
    493,507.20x = 342,005,227,269.12
  5. Step 5: Solve for x
    x = 342,005,227,269.12/493,507.20
  6. Step 6: Final answer
    x = 693,009.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.